Zeeman-level lifetimes in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mtext>Er</mml:mtext></mml:mrow><mml:mrow><mml:mn>3</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:mo>:</mml:mo><mml:msub><mml:mtext>Y</mml:mtext><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mtext>SiO</mml:mtext></mml:mrow><mml:mn>5</mml:mn></mml:msub></mml:mrow></mml:math>

Hastings‐Simon, Sara; Lauritzen, Björn; Staudt, M. U.; Mechelen, J. L. M. van; Simon, Christoph; Riedmatten, Hugues de; Afzelius, Mikael; Gisin, Nicolas

doi:10.1103/physrevb.78.085410

Cited by 53 publications

(69 citation statements)

References 37 publications

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“…2. This allows estimating a mean hole/anti-hole splitting of 25 GHz/T, which is comparable to the values typically measured in erbium doped crystals [19,20]. This further supports our conclusion of population storage in Zeeman levels.…”

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confidence: 89%

Efficient and long-lived Zeeman-sublevel atomic population storage in an erbium-doped glass fiber

et al. 2015

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Long-lived population storage in optically pumped levels of rare-earth ions doped into solids, referred to as persistent spectral hole burning, is of significant fundamental and technological interest. However, the demonstration of deep and persistent holes in rare-earth ion doped amorphous hosts, e.g. glasses, has remained an open challenge since many decades -a fact that motivates our work towards a better understanding of the interaction between impurities and vibrational modes in glasses.Here we report the first observation and detailed characterization of such holes in an erbium-doped silica glass fiber cooled to below 1 K. We demonstrate population storage in electronic Zeemansublevels of the erbium ground state with lifetimes up to 30 seconds and 80% spin polarization. In addition to its fundamental aspect, our investigation reveals a potential technological application of rare-earth ion doped amorphous materials, including at telecommunication wavelength.

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confidence: 89%

Efficient and long-lived Zeeman-sublevel atomic population storage in an erbium-doped glass fiber

et al. 2015

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“…The use of Tm 3+ :Y 2 O 3 , where the holeburning involves a metastable electronic state, has been proposed to avoid this problem [172]. Another alternative would be to use the Zeeman level structure of odd-electron RE ions such as Neodymium [143,169] and Erbium [195], where level spacings larger than 1 GHz can be obtained by applying moderate magnetic fields. Some early proposals for CRIB based memories have the required controlled inhomogeneous broadening induced on a material level, i.e.…”

Section: Experimental Realizations Of Cribmentioning

confidence: 99%

Photon‐echo quantum memory in solid state systems

Tittel¹,

Afzelius

Chanelière

et al. 2010

Laser & Photonics Reviews

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432

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Many applications of quantum communication crucially depend on reversible transfer of quantum states between light and matter. Motivated by rapid recent developments in theory and experiment, we review research related to quantum memory based on a photon-echo approach in solid state material with emphasis on use in a quantum repeater. After introducing quantum communication, the quantum repeater concept, and properties of a quantum memory required to be useful in a quantum repeater, we describe the historical development from spin echoes, discovered in 1950, to photon-echo quantum memory. We present a simple theoretical description of the ideal protocol, and comment on the impact of a non-ideal realization on its quantum nature. We extensively discuss rare-earth-ion doped crystals and glasses as material candidates, elaborate on traditional photon-echo experiments as a test-bed for quantum state storage, and describe the current state-of-the-art of photon-echo quantum memory. Finally, we give a brief outlook on current research.The picture shows a Europium doped Y2SiO5 crystal surrounded by electrodes in the setup used for the first proof-of-principle demonstration of the novel, photon-echo based quantum memory protocol.

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“…The ratio T hole /T 1 = 9 × 10 5 is high enough to lead to negligible residual ground state population after optical pumping. 17,21 This conclusion would hold even better at lower temperatures, as at 3.5 K the hole depth showed no decay within 30 min. We note that the hole lifetime at 6 K is shorter than that of the single crystal studied in Ref.…”

mentioning

confidence: 92%

“…Finally, transparent ceramics can be obtained in large dimensions useful when dealing with large étendues beams, as in UOT. 10 Key spectroscopic parameters for the above applications are 2,3,17,18 (i) the homogeneous linewidth Γ h that determines spectral filtering resolution and quantum processing time, (ii) the absorption coefficient related to filtering and quantum memories' efficiencies, and (iii) the spectral hole lifetime that sets the residual ground state population after optical pumping in low-symmetry sites and filtering efficiency and quantum processing fidelity. 12 Although this value is still on the higher side of values measured on single crystals, it suggests that ceramics could be useful for applications in spectral filtering and QIP.…”

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confidence: 99%

Rare-earth doped transparent ceramics for spectral filtering and quantum information processing

et al. 2015

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Homogeneous linewidths below 10 kHz are reported for the first time in high-quality Eu3+ doped Y 2O3 transparent ceramics. This result is obtained on the 7F0→5D0 transition in Eu3+ doped Y 2O3 ceramics and corresponds to an improvement of nearly one order of magnitude compared to previously reported values in transparent ceramics. Furthermore, we observed spectral hole lifetimes of ∼15 min that are long enough to enable efficient optical pumping of the nuclear hyperfine levels. Additionally, different Eu3+ concentrations (up to 1.0%) were studied, resulting in an increase of up to a factor of three in the peak absorption coefficient. These results suggest that transparent ceramics can be useful in applications where narrow and deep spectral holes can be burned into highly absorbing lines, such as quantum information processing and spectral filteringThis work was supported by the ANR projects RAMACO (No. 12-BS08-0015-01) and DISCRYS (No. 14-CE26-0037-01), Idex No. ANR-10-IDEX-0001-02 PSL⋆, and Nano’K project RECTUS. C.W.T. and R.L.C. acknowledge support from National Science Foundation (NSF) Award Nos. CHE-1416454 and PHY-1415628 and M.O.R. and L.E.B. from Project No. MAT2013- 43301-R of the Spanish Ministry of Economy and Competitiveness (MINECO) and Comunidad Autónoma de Madrid under Grant No. S2013/MIT-274

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Zeeman-level lifetimes inEr3+:Y2SiO5

Cited by 53 publications

References 37 publications

Efficient and long-lived Zeeman-sublevel atomic population storage in an erbium-doped glass fiber

Efficient and long-lived Zeeman-sublevel atomic population storage in an erbium-doped glass fiber

Photon‐echo quantum memory in solid state systems

Rare-earth doped transparent ceramics for spectral filtering and quantum information processing

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